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Evaluation And Ranking Of Candidate Ceramic Wafer Engine Seal Materials
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722209605 Total Pages :28 pages Book Rating :4.2/5 (96 download)
Book Synopsis Evaluation and Ranking of Candidate Ceramic Wafer Engine Seal Materials by : National Aeronautics and Space Administration (NASA)
Download or read book Evaluation and Ranking of Candidate Ceramic Wafer Engine Seal Materials written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern engineered ceramics offer high temperature capabilities not found in even the best superalloy metals. The high temperature properties of several selected ceramics including aluminum oxide, silicon carbide, and silicon nitride are reviewed as they apply to hypersonic engine seal design. A ranking procedure is employed to objectively differentiate among four different monolithic ceramic materials considered, including: a cold-pressed and sintered aluminum oxide; a sintered alpha-phase silicon carbide; a hot-isostatically pressed silicon nitride; and a cold-pressed and sintered silicon nitride. This procedure is used to narrow the wide range of potential ceramics considered to an acceptable number for future detailed and costly analyses and tests. The materials are numerically scored according to their high temperature flexural strength; high temperature thermal conductivity; resistance to crack growth; resistance to high heating rates; fracture toughness; Weibull modulus; and finally according to their resistance to leakage flow, where materials having coefficients of thermal expansion closely matching the engine panel material resist leakage flow best. The cold-pressed and sintered material (Kyocera SN-251) ranked the highest in the overall ranking especially when implemented in engine panels made of low expansion rate materials being considered for the engine, including Incoloy and titanium alloys. Steinetz, Bruce M. Glenn Research Center RTOP 505-63-5B...
Book Synopsis Evaluation and Ranking of Candidate Ceramic Wafer Engine Seal Materials by :
Download or read book Evaluation and Ranking of Candidate Ceramic Wafer Engine Seal Materials written by and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Monthly Catalogue, United States Public Documents by :
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Book Synopsis Monthly Catalog of United States Government Publications by :
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Book Synopsis Rotating Machinery-1992 by : Wen-Jei Yang
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Book Synopsis 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3850 - 04-3899 by :
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Book Synopsis Government Reports Annual Index by :
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Book Synopsis Materials and Processes by : Barrie D. Dunn
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Book Synopsis Crystal Growth and Evaluation of Silicon for VLSI and ULSI by : Golla Eranna
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Book Synopsis Airframe & Powerplant Mechanics by :
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Book Synopsis Metal-Organic Framework Materials by : Leonard R. MacGillivray
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